README.rdoc in fluent-plugin-mongo-0.2.0 vs README.rdoc in fluent-plugin-mongo-0.2.1

@@ -1,18 +1,41 @@
 = MongoDB output plugin for Fluent
 
+== Component
+
+=== MongoOutput
+
+Output to MongoDB database.
+
 == Configuratin
 
+=== MongoOutput
+
     <match mongo.**>
       type mongo
       database fluent
       collection test
 
       # following attibutes are optional
       host fluenter
       port 10000
 
       # Other buffer configurations here
+    </match>
+
+=== Backup to local capped collection
+
+Use <store> section.
+
+    <match mongo.**>
+      type mongo
+      database fluent
+      collection test
+
+      <store>
+        size 100000
+        max  1000
+      </store>
     </match>
 
 == TODO
 
 === More configuration